Chapter 79 Wang Xingguo: I'm super fired up!
Chapter 79 Wang Xingguo: I'm super fired up!
[Wang Xingguo]: ? ? ?
[Wang Xingguo]: Supercombustion test? ???
[Wang Xingguo]: What is this thing? Wait, go to Lab 78, I'm coming to find you right now!
Less than ten seconds after the message was sent, Wang Xingguo replied with a series of question marks.
Finally, without waiting for Lin Dong's reaction, he told Lin Dong to come to Experiment 78 for a meeting.
"...You're Chengdu Aircraft Industry Group 001, how come you're still so impatient?"
Lin Dong looked at Wang Xingguo's message and quickly sent a few more messages saying "Don't be so exaggerated," but when he didn't see a reply, he sighed helplessly.
Without his laptop, Lin Dong secretly sent the two sets of blueprints to the lab's supercomputing server, then grabbed his keys and headed out.
Laboratory No. 78 is not far from the residential area.
As I went downstairs, the evening breeze at the end of April was already carrying the scent of early summer. The streetlights cast dappled shadows between the roadside trees, and occasionally a few small flying insects would leap up from the green belt, chasing the lights and crashing into the lampshades.
After walking for more than ten minutes, the laboratory was already in front of him. He took out his key, opened the door, and found that Wang Xingguo had quietly entered the laboratory.
"Godfather!" Lin Dong called out.
"Quickly turn on the computer and tell me what's going on!" Wang Xingguo looked up and quickly pulled Lin Dong toward the keyboard and screen.
"Everyone says it's a small matter, no need to make such a big deal out of it."
Lin Dong picked up the keyboard, entered the password, and entered the desktop. He then opened the engine design drawings and the drawings of the supercombustion test device that had just been sent to him.
The lab's servers are all running 24/7, which is convenient for sending and uploading data in normal times, or for connecting and controlling remotely in emergencies.
"Don't say anything yet, let me see..."
Wang Xingguo immediately stepped forward, looked at the blueprints displayed on the 200-inch screen on the wall, and after carefully examining them for a while, he finally figured out the structure. A look of shock flashed in his eyes: "Three-engine combination... the supercharger engine of the American SR-72 drone?"
...How come you all have such a deep impression of American PowerPoint presentations?
Lin Dong said helplessly, "Godfather, mine is more advanced than the American SR-72 drone."
No.
At least his drone's aerodynamic layout has been tested in a wind tunnel, and the engine design has been finalized and is undergoing design verification. This is far more advanced than the Americans' PowerPoint presentations.
"Advanced! Advanced!"
Wang Xingguo turned around excitedly, his eyes shining as he stared at Lin Dong: "Can you really figure it out?"
"My godfather helped me find 624 to do a few supercharge tests. Once I got the data, there wouldn't be any problems."
Lin Dong explained simply: "I need to solve the problem of fuel mixing and combustion, but the supersonic interface hinders mixing, and the combustion delay of aviation kerosene prevents it from burning in the engine."
Now we need to create an arresting shock wave to generate brief gas turbulence to aid fuel mixing, while simultaneously increasing gas residence time by 0.8 milliseconds, thus creating space for the aviation kerosene to burn.
Burning delay refers to the fact that aviation kerosene burns at a speed of only 0.4 meters per second, which is approximately Mach 4.
This speed is more than enough for a subsonic combustion engine, but it would be insufficient for a scramjet engine.
Often, before the fuel is fully combusted, most of it is already ejected from the engine.
Therefore, in order to use aviation kerosene as fuel, in addition to solving the mixing problem, it is also necessary to extend the residence time of the mixed gas inside, so as to give the kerosene time to burn completely.
"Using kerosene as fuel?"
Wang Xingguo frowned: "The static temperature at the supersonic interface is over 1500K. How do we solve the problem of high-temperature coking of kerosene?"
"Adjust the fuel injection model and establish a dynamic fuel injection structure to ensure that the kerosene mixes and burns immediately, reducing the high-temperature contact and conduction time. If that doesn't work, use cracked kerosene."
"This model is extremely difficult to create..."
Wang Xingguo was about to say something, but seeing Lin Dong's still-youthful face, he stopped and instead raised another crucial question.
"What about thermal congestion in the supercharged engine?"
Thermal congestion is a problem that supercharged engines inevitably face.
Under normal circumstances, heating causes airflow to expand and increase its speed.
However, when the airflow breaks through supersonic speed, the situation reverses; heating will actually slow down the supersonic airflow until it drops to a speed equal to Mach 1.
In this situation, the gas slows down because combustion in the combustion chamber releases heat.
Meanwhile, the supersonic airflow at the front continuously rushes in, and the combination of the two causes gas and heat to accumulate in the combustion chamber, resulting in thermal congestion.
Once thermal blockage occurs, the pressure and temperature in the combustion chamber will spike dramatically within milliseconds.
When the pressure gets too much, you need to release it.
However, at this point, the gas at the rear of the combustion chamber has already slowed down and become blocked due to high temperature.
Such enormous pressure can only flow into the air intake in the opposite direction, eventually leading to overburning failure, engine stalling, or even serious consequences such as engine damage and explosion.
"Add a full-channel cooling system, establish dynamic monitoring and precise fuel injection to avoid excessive combustion and temperature runaway, and increase the diameter of the combustion chamber and add redundancy design."
Lin Dong offered several solutions: "Of course, these are just general directions. The specific details will have to wait until the design reaches that stage and we have done the actual calculations before we can determine them."
"well!"
Wang Xingguo could tell that Lin Dong was truly confident, and he couldn't hide the joy on his face.
But the next moment, when he saw the drawings of the supercombustion test device below the engine design drawings, his excited expression froze.
"this……"
Wang Xingguo asked with an unnatural expression, "Are we really going to have Institute 624 do it? Can't we use other research institutes?"
"Supercombustion experiments are a technology that no other laboratory has," Lin Dong shook his head.
"Then, shall your dad do it?"
Wang Xingguo said with some difficulty, "I really don't know how to find that old guy Jiao You about this matter."
Xiao Dong, you know I've been working on the Emei engine project with them lately, and I also have to handle Chengdu Aircraft Industry Group's daily research affairs...
I can't possibly tell Jiao You.
During the day, I worked with you all on researching the Emei engine and handling other tasks, busy until eight or nine o'clock at night before leaving get off work. When I got home, I even worked overtime on my own to research a super-powerful engine.
"My dad's not high enough rank. He's been working on swarm drones lately, so... why don't you just tell the truth?"
Lin Dong whispered his suggestion: "Chief Engineer Jiao You, his rank should be fine."
"No!"
Upon hearing this, Wang Xingguo instinctively jumped up: "The arrival of the 624 and 606 teams at Chengdu Aircraft Industry Group has attracted a lot of attention. In the past month or so, the National Security Bureau has arrested more than a dozen spies in Chengdu and uncovered several leads."
At this point, you must not reveal your identity to anyone other than those who already knew it, as this would increase the risk of your exposure!
Wang Xingguo spoke with a firm tone.
As the 001st officer of Chengdu Aircraft Industry Group, his authority made him acutely aware of how brutal the truth was on the covert front, and even more aware that leaks and exposures often occurred in inconspicuous details.
Jiao You's rank and status are indeed trustworthy.
However, as the chief engineer of 624, he was already a key target of the spies' attention.
A person's instinctive demeanor differs depending on whether they know the secret or not.
Especially in the early stages when people have just learned about something and haven't adjusted their mindset, they often can't control their instinctive expressions.
If Jiao You were to find out Lin Dong's identity now, and he didn't control his reaction when he saw Lin Dong, and someone in the shadows noticed it, they could deduce a lot of information and intelligence, and then he would really be encountering a ghost.
"Let me think about how to solve this..."
Wang Xingguo paced back and forth a few times, then suddenly gritted his teeth and instructed Lin Dong, "Delete some of the dimensions and parameters from this drawing and print it out as well. Also, print out the drawing of this supercombustion test device along with it, using confidential paper!"
"it is good."
Lin Dong didn't ask Wang Xingguo how to solve the problem. Instead, he printed out some of the blueprints, as well as the blueprints for the supercombustion test device, on confidential paper with no traceable source.
"I'll get it."
Wang Xingguo didn't let Lin Dong touch the printed blueprints. He put the thick stack of blueprints into a brown paper bag himself and turned to Lin Dong to give instructions.
"Wait for my news. Including the manufacturing of the equipment and the actual data collection, this experiment will take about 8 to 10 days even with expedited processing."
"no problem."
Lin Dong nodded. The actual experiment required first making a test device with the corresponding size and structure before the experiment could be carried out.
In his initial expectations, it would be good if the superheated test could be completed within a month.
Ten days was far faster than he had expected.
All I can say is, as expected of Chengdu Aircraft Industry Group 001, their influence and connections are terrifying!
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